Dan Read
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View article: Fabricating distributed feedback laser gratings with bismuth and gold focused ion beams
Fabricating distributed feedback laser gratings with bismuth and gold focused ion beams Open
Fabricating first order gratings for laterally coupled distributed feedback (LC-DFB) lasers can be challenging due to aspect ratio dependent etching. Developments in focused ion beam (FIB) processing and source technology introduce the pot…
View article: Application of mesh-free and finite element methods in modelling nano-scale material removal from copper substrates: A computational approach
Application of mesh-free and finite element methods in modelling nano-scale material removal from copper substrates: A computational approach Open
This study explores the modelling methodology using mesh-free smoothed particle hydrodynamics (SPH) and finite element modelling (FE) techniques to simulate the AFM-based nano-scratching processes for advancing precision engineering in nan…
View article: Numerical Simulation of Nanomachining: Exploring Meshless and Finite Element Techniques for Material Removal Modelling
Numerical Simulation of Nanomachining: Exploring Meshless and Finite Element Techniques for Material Removal Modelling Open
Mechanical nano machining involves the precise removal of material at the nanoscale under the action of a cutting tool, enabling the creation of intricate structures and devices in various sectors, including semiconductors, optics, and man…
View article: Tuning the band topology of GdSb by epitaxial strain
Tuning the band topology of GdSb by epitaxial strain Open
Rare-earth monopnictide (RE-V) semimetal crystals subjected to hydrostatic pressure have shown interesting trends in magnetoresistance, magnetic ordering, and superconductivity, with theory predicting pressure-induced band inversion. Yet, …
View article: Investigation of Nanoscale Scratching on Copper with Conical Tools Using Particle-Based Simulation
Investigation of Nanoscale Scratching on Copper with Conical Tools Using Particle-Based Simulation Open
In this study, a modeling approach based on smooth particle hydrodynamics (SPH) was implemented to simulate the nanoscale scratching process using conical tools with different negative rake angles. The implemented model enables the study o…
View article: Epitaxial growth, magnetoresistance, and electronic band structure of GdSb magnetic semimetal films
Epitaxial growth, magnetoresistance, and electronic band structure of GdSb magnetic semimetal films Open
Motivated by observations of extreme magnetoresistance (XMR) in bulk crystals of rare-earth monopnictide (RE-V) compounds and emerging applications in novel spintronic and plasmonic devices based on thin-film semimetals, we have investigat…
View article: Tuning the Band Topology of GdSb by Epitaxial Strain
Tuning the Band Topology of GdSb by Epitaxial Strain Open
Rare-earth monopnictide (RE-V) semimetal crystals subjected to hydrostatic pressure have shown interesting trends in magnetoresistance, magnetic ordering, and superconductivity, with theory predicting pressure-induced band inversion. Yet, …
View article: Epitaxial growth, magnetoresistance, and electronic band structure of GdSb magnetic semimetal films
Epitaxial growth, magnetoresistance, and electronic band structure of GdSb magnetic semimetal films Open
Motivated by observations of extreme magnetoresistance (XMR) in bulk crystals of rare-earth monopnictide (RE-V) compounds and emerging applications in novel spintronic and plasmonic devices based on thin-film semimetals, we have investigat…
View article: Controlling magnetoresistance by tuning semimetallicity through dimensional confinement and heteroepitaxy
Controlling magnetoresistance by tuning semimetallicity through dimensional confinement and heteroepitaxy Open
Dimensional confinement and heteroepitaxy enable the engineering of material properties at the atomic scale.
View article: Quantum Hall states emerging from linear magnetoresistance in a topological half-Heusler semimetal
Quantum Hall states emerging from linear magnetoresistance in a topological half-Heusler semimetal Open
Topological materials often exhibit remarkably linear, non-saturating magnetoresistance (LMR), which is both of scientific and technological importance. However, the role of topologically non-trivial states in the emergence of such a behav…
View article: Identifying the fingerprints of topological states by tuning magnetoresistance in a semimetal: the case of topological half-Heusler Pt1-xAuxLuSb
Identifying the fingerprints of topological states by tuning magnetoresistance in a semimetal: the case of topological half-Heusler Pt1-xAuxLuSb Open
Topological materials often exhibit remarkably linear, non-saturating magnetoresistance (LMR), which is both of scientific and technological importance. However, the role of topologically non-trivial states in the emergence of such a behav…
View article: Revealing quantum Hall states in epitaxial topological half-Heusler semimetal
Revealing quantum Hall states in epitaxial topological half-Heusler semimetal Open
Prediction of topological surface states (TSS) in half-Heusler compounds raises exciting possibilities to realize exotic electronic states and novel devices by exploiting their multifunctional nature. However, an important prerequisite is …
View article: Existence and stability of skyrmion bags in thin magnetic films
Existence and stability of skyrmion bags in thin magnetic films Open
Skyrmion bags are spin textures of any integer topological degree, realized in micromagnetic simulations and experimentally in liquid crystals. They have been proposed as a promising new form of magnetic data storage due to their stability…
View article: Weak antilocalization in quasi-two-dimensional electronic states of epitaxial LuSb thin films
Weak antilocalization in quasi-two-dimensional electronic states of epitaxial LuSb thin films Open
Observation of large nonsaturating magnetoresistance in rare-earth monopnictides has raised enormous interest in understanding the role of its electronic structure. Here, by a combination of molecular-beam epitaxy, low-temperature transpor…
View article: Two-photon lithography for 3D magnetic nanostructure fabrication
Two-photon lithography for 3D magnetic nanostructure fabrication Open
Ferromagnetic materials have been utilised as recording media within data\nstorage devices for many decades. Confinement of the material to a two\ndimensional plane is a significant bottleneck in achieving ultra-high recording\ndensities a…